complain /kəmˈplein/ vi.& vt. 抱怨(跟about或of短语，亦可跟从句)：If she isn’t complaining about one thing she is complaining about another. 她不是怨这就是怨那。She complained to me of his rudeness. 她在我面前埋怨他的粗鲁。She complained loudly of having been kept waiting. 她高声抱怨让她等得太久了。She complained that the exam was too hard. 她抱怨考试太难。
complaint /kəmˈpleint/ n. 1.［c］抱怨，怨言: Do you wish to make a complaint? 你想抱怨两句吗? My sisters have written me so many complaints. 姐姐给我的信中写了许多怨言。2.［u］&［c］控告，申诉，诉苦：Hence they could endure the hardships without complaint. 因此他们能毫无怨言地忍受痛苦。Why don’t you lodge a complaint against your noisy neighbours? 你为什么不控诉你那发出如此噪音的邻居呢?
